Just to say that this got fixed in #17320
http://trac.sagemath.org/ticket/17320
Nathann
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Hi!
On 2014-11-11, Peter Mueller ypf...@googlemail.com wrote:
Is it needed to install an optional package first? Which?
indeed, you have to install cbc-2.8.1.p0 first (if you have sage version
6.3). It takes some time to compile.
Thanks! I can confirm that there is a leak, and it seems
Dear Simon,
Thanks for looking into this issue. I opened a ticket, it is ticket 11917
http://trac.sagemath.org/ticket/11917.
(As a naive end user of Sage, I unfortunately cannot contribute anything to
resolve the problem.)
Best wishes,
Peter
Am Mittwoch, 12. November 2014 10:57:05 UTC+1
Dear Simon,
Thanks for looking into this issue. I opened a ticket, it is ticket 17320
http://trac.sagemath.org/ticket/17320#ticket.
(As a naive end user of Sage, I unfortunately cannot contribute anything to
resolve the problem.)
Best wishes,
Peter
Am Mittwoch, 12. November 2014 10:57:05
A tentative solution seems to be to put a `collect()' inside the loop (and
a `from gc import collect' at the beginning of the program). Still, I
believe that this issue deserves attention.
-- Peter M.
Am Dienstag, 11. November 2014 12:20:30 UTC+1 schrieb Peter Mueller:
3 years ago a memory
Hi Peter,
On 2014-11-11, Peter Mueller ypf...@googlemail.com wrote:
A tentative solution seems to be to put a `collect()' inside the loop (and
a `from gc import collect' at the beginning of the program). Still, I
believe that this issue deserves attention.
If gc.collect() solves the issue,
Dear Simon,
you are right, and I was wrong in claiming that collect() relieves matters.
Just found out that the call of collect() tremendously slows down the
program. So it would take quite long until it reaches the stage where the
version without collect() needed only a few minutes to consume
Hi Peter,
On 2014-11-11, Peter Mueller ypf...@googlemail.com wrote:
Am Dienstag, 11. November 2014 12:20:30 UTC+1 schrieb Peter Mueller:
while True:
P = MixedIntegerLinearProgram(solver=Coin)
eats several GB within a few seconds!!! The same with solver=Coin, but
not with solver=glpk.
Dear Simon,
I just wanted to spend some time on debugging, but I get
sage: P = MixedIntegerLinearProgram(solver=Coin)
Traceback (most recent call last):
...
ImportError: No module named coin_backend
Is it needed to install an optional package first? Which?
indeed, you have to
On 2014-11-11, Peter Mueller ypf...@googlemail.com wrote:
Dear Sage developers,
3 years ago a memory leak in lp solvers was fixed in ticket
http://trac.sagemath.org/ticket/11917. It seems that the problems are back
in Sage 6.3.
The code
while True:
P =
You mention Coin twice here. Do you mean to say Gurobi once, and Coin once?
Sorry, yes. The problem arises with gurobi and cbc (=Coin), but not with
glpk.
-- Peter
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